выполните действия.73/4-(45/6-31/2)+12/3

1)45/6-31/2=45/6-93/6=-48/6=-8;2)73/4-8/1=73/4-8/1=73/4-32/4=41/4;3)41/4+12/3=123/12+48/12=41/4+4=10,25+4=14,25.